Rotary valve.



www?. r PATENTED APR.9,1901.-

l LW; BISEMUTH.`

ROTARY VALVE..y

.IAFPLIGA'TION FILED JULY zo. 1905.`

a, central sectional, view; 'through a" val'vfel UNITED srAr-ns y PATENT. l celeron,1,A

.ioniv ,WASHINGTON -nrsieNiiuiii, orf BROOKLYN, NEW YORK, @hssr'el'ion,

@Tali-@Zt whom/ ;thing/concern: 1

Be it known that I, JOHN WASING'TOiI and; StatevoihNm/v-York, have' invented; cer-k tain:nen`*'and useful Improvements in Rotary Valves 'and do hereby declare-the following tol bea Jull, clear, and? exact descri tion of they .j The princi lstl-.obj ect 4oi'the invention is to vprovide a )va ve which is ci the rotating type and so' 'constructit 'asxto be perfectly balanced'fin' itsaction@` 'f ,f l ',f It is also the object of the inventionrtol ,"prcvidefsuch avalve which may be' capable fof usefin x'connection with explosive-engines and'wyil'l'" ivithstand the pressure "ex rted in,

` 'the' Cylinders by the explosion of mixtures-of if yariou'sffkinds Without rendering the move` of the valve'difiicult orl accompanied vvithlfrictionoi anyapreoiable degree. l Vith theseand `et er objects in 'view the invention' 'cornprises certain novel Tpr'i'stru-c-y ftioiis, conibnations,`v and arrangements of ParC'S, SW.

" and Claimed.' A

In theacconipan "ng ,dimage .Figure v1v iis" il mechanism constructed in 'accordance the'present invention, theplane ofthe section nf-rein@A Fig, V f2 y,is asimilar sectional vieW' a; through al slightlydifferent for'rn of. valve.

the adinission of press11re iiuids to; the cyllndjerfor t t "speeiiicatipf'Letters-rates@ f;

i -E1snNHUTH, a citizen of the 4Ur'iited Stateaf fresidi-ng at Brcoklynnn the county'ofy Kings"l trolling the 'admission' oi1pressure'-exerting' "be `hereinafterfdescribed? ffBY MEsNE Ass-IGNMENTS., To.Trina-fooiinounniMoreacentralini;,confr I i, charges-thererroni.- lThesaid.valve rnechanl ism is, however,l Well adapted forusein conthe: pres sure produced in;aacylinderL by the i explosion ofcertain mixtures therein.' i' Since the mechanism is particularly fvvell 'adapted `Yfor use in connection with. an explosive-gas for u'sein connectionivvith such engine.

kin Fig. 31 have illustrated portions of two Acylinders of an-engine, one ofgsaid cylinders, as 1 ,i being preferably a'l highlpre'ssure cylinder,.\vhile the other one', sis-2, is ai low-pressurecylinder., The highyipressure cylinder receives its" charges lof ex lesive materials `from a supplyepipeI 3, xvhicy v chargesare di- A rected by a valve;through apor't 5 and'into the cylinder'l. After the explosive' `charges ,have beenignitedand exy anded "in the ,\cyll nect'ion explosivev-gas-enginesfin Which the-- valve mechanism may? be subjected to A engine, I' Will describethefsanie asconstructed i `inderyil to accomplish the,V esired Work' in said -v l certain materials. or mixtures. ,y As shown 1n F1g.' 1,.the valve i is: ibunted -cylinder the exhaust'charges may be then 5 ofthe vaiv'e mechanism tothe controlling of "Within a' suitable' casing 7 ,fyvhich'is usuallyand preferably beveledfrorn the-'central por- 'tion of` the. oasingjoutwardly in .both direl jjusted positions. They-valves rnove#` against abutment-bearings" carried by crossheads .or' y spiders'V l21 andl 22,' vvhich'are` adjustably secured in. the casing `7 shown in Fig. 1 ,f ball'bearingsf or; other antifrictional V means are "tions, aswindicated 'at 8 vandqQp Thevalve is loo . [195. terposed betyveenthe spiders L21.V and 22 "f5, being left. 'T

inwardly ,until theyit snugly in the .beveled ic-innerportionof the casing. )The spiders 21 and 22.are .then screwed into place or other- Wise adjusted to hold the balls:23 and 24 in contact with thehubs 14. and 15, ver'yslight f looser-less in the adjtpstmentof the ball-bearuponthe threads 1.7 .and 18, 'so as to just free the valve-sections' Vfrom the beveled surface. of 'the casing-a suiicient degree to permit of.

2o their turning. I'The valve sectie-ns1,are'thus accurately held in position in the casing and yet are tree vto .againstJ 'the yba'llbearings upont imparting-of rnovemen'tto the valve s temorrod16- 'i ,z All pressure introduced through the .valve mechanism is directed .between the'. valve- Lsections' 1f@ and- 11, jsoV that the 4pressureV against said' sections 'is exactly e ualiz'ed the one with respect to the other an there is no figof-iesulting 'pressure from the lexplosion inthe engine upon the 'ball-bearings carried by the spiders.' The valve isthus thoroughly a completelybalanced valve.

11i-applying the-.valve mechanism to such a 3'5- structure las that showninFig. 3 Arthe port-.5

is always open at -each end, so that the infte- -1'ioroftl-1e valve mechanism is always'incom--v mnication with lthe interior of the'cylinder 1.; 'Theinieeporfiscemrolled bypnefofthe 4ov'aly'fe-'sections,I las.' 10, .in .the periphery. vof

which "a port is formed' "When .the valve.

is slightly turne'd,the port 15 is -moved 'away from the inlet-port'at 26,and said inlet-port ywill thus be Yclosed.h .'By moving the valve in. the other@ direction'the inlet-port Will ibeopened., so =as to admit charges through the intei'ior of the valvemechanisrn and the port 5 tothe interior of the cylinder 1. Such` y 'charges-arefusually drawn in bythe suction 5o of Ithe .piston *movingin the cylinder 1. As-

soon 'as the charges are'well within'the cylin' l der the valve-stern 16 fis moved. by any suitable mechanism (not sliombforlclosing thel inlet-portend holding the --charges within I th'e' cylinder A and valve-casing. During. this- 4tilnf.' the .'-explosive'materials are ignited .and

- their ,fexpansiveforce applied witln'the cylindeg.. 4The 'saidg'ases o r mixtures when eX- ploded cannot escape'through the inlet-port 6o` orthrou h theeXhaust--' ort 2-7 because of' .the `perip eral portions o 'the valve-sections '.10 'and 11. Assoon fas the explosion occurs the valve-.stem f16` is. further iturned'to bring a'pont 28 the walls ofthe section 11 eppoi#- site th .xhfiliS-:Outlatmtheng.;@ed

' the' exhestfgaoes .cylinder "through theport1'5 and the casing?,

,. VThe valve may b s ferent manner from that described. with ree inner jam-nuts 19. and .20 arev then's'et up 'against fthe hubs 14 and 15 4one peripheral .portion to the other of they tating the movementI of fthe, valve .Without the valve, so that the pressure upon `one end v may then vout of .the

At thistiane 'thepoft l5 of'thevave-se'ctron 10 will not be opposite the inlet-'pom '26." this'simple manner the balance-valve may be made to control the inlet and Outlet of press xerted meansto a-cylinder.. .If asecond cylinder '2 is lconnected with'` the valve-casing,l

e' made laslightly-'dife saidcylin' er.

spect to Fig-1 vand without departing 8e the spirit of 'theilnventiom and such anal# tered form offva'lve" isshownin Fig. 2. In"

this construction the end sections 29 and 30 are connectedby bars A31, which extend from "this manner theptwo valvefheads are ractically .integrally "connected andv their ubs A v `32 and-33 'are preferably rigidly connected with thevalve stem or rod 34. l When constructing the valve proper .in the manner now described., the said valve is prefera'bly tapered c ontinuouslyfrom one end toward theother and is ground to t the ta` pered inner surface 35 .of a valvesca'sing3'6,

. the said tapered surface being. of course 'continuous in its taper from one end of the casing to the other.. l Ball or; other -antifrictional bearings are mounted .at the ends of the valve,"as in .the other. construction, for acili^ ro'o friction; As shown inFig. 2, the ball-bearings 37 and 38'maybe mounted at the "outer-pe' riphery Vof the valve instead ofpngagingthe hubs thereof. -The'action of the bal:l'bear rs ings is practically the same in this'.construc 'tion-'as in the construction shown in'Fig. `1

and limit' the endwise movement of thevalve. The pressure entering and escaping from the cylinder is, however, introduced vinto the'cem- I'xo` tral portion of thevalve as in .theformercon- .struction and :all passes through a., port' 39 like the port 5, abovedescribed.. Theport 3 9 is yopposite. Athe spaces 'formed between the connectingbarsl. 1 Inlet and outletcontrol lingports 40 and 41- .are providedy in the peripheral portions at each endof` the valveand Lopera-te', .when the valve is .moved to cut off or open. inlet ,or exhaust ports in the valve-cas ingin exactly the vsame manner as described with respect to ports .25.and 28. It-Will be seenY that ginfthis' construction also the' pressure passing through the valve mechanism is. always introduced betweenthe endjwalls -of of the valve yequaliaes .the pressure lupon theg op ospite-end ofthevalve, making a perfectlyperipheriesinstead iof at their central portions, and although the two valve structures.

are slightly different in their central structure and in their engagement with the walls of the inclosing casings it Will'beevident that their action and effect is practically the same and that the second'structure described is clearly Within the spirit and scope` of the invention.

It should other minor changes in the detailsof construction may be varied Without- 4departing from the spirit of the invention. Itis also .Within the contemplation of the invention to use a valve of this. character in connection with any. engine cylinder or cylinders or with a pumping mechanism for fluids as Well as gases Where a balance-valve is desired and Where the pressure may be introduced centrally of the valve mechanism.

Having thus fully described my inventionJ what I claim as new, and desire to secure by Letters Patent, isf

1. In a valve, the combination of a cylindric al valve-casing the interior of which has a tapered formation, a longitudinally-adjustab e rod extending through the casing and mounted to have a rotary movement, oppositely disposed valve disks mounted upon the rod and engaging the interior of the valve-casing, inwardly-extending peripheral flanges carried by the valve disks and beveled to correspond to the taper' of the interior of the casing, the said casing having a port formed therein at a point between the fianges, and alo an opening adjacent each fiange, the said-gfianges being providedI with corresponding open-ings, cross-heads adjustably mounted within each end of the cylindrical casing, and antif'ricti'on-bearings interposed between the cross-heads and the valvedisks.

2. In a valve, the combination of a cylindrical valve-casingthe interior of which is reversely inclined outwardly from the central portion, a longitudinally-adjustable rod extending through the casing and mounted to have a rotary movement, oppositely-dis-- posed valve-disks carried by the rod andengagmg the reversely-mchned inner walls of the casing, and inwardly-extending peripheral fianges carried by the valve-disks and beveled in opposite directions to correspond to the reversely-tapered walls of the interior `be, of course,-i1nderstood that of the valve-cas'. ,l the said casin having a port formed therein between the anges and also anl opening adjacent each flange, the

said flanges being provided with corresponding openings and in conjunction Wit `valve-disks defining a space ada ted to be brought .into communication wit either of the, before-mentioned openings, A

3. AIn a valve, the combination of a cylindrical valve-casing the interior of which is reversely tapered outwardly from the-central portion, a rod extending through the casing, oppositely-disposed valvedisks pro-- vided with hubs by means of which they the,-

correspond reversely tapered outward from an intermediate point, a rod extending through the casing, oppositely.- disposed, valve disks provided with hubs by means of which they are mounted upon the rod, inwardly-extending peripheral flanges carried -by the valve-disks and beveled to correspondto the reverselytapered walls of the casing, the said casing being formed with aportat a point between the flanges and also an opening adjacent each fiange, the said flanges ,being provided with correspondinU openings, a cross-head closing each end of t ie valve-casing,bearings in terosed between the cross-heads and the beore-mentioned hubs, and jam-nuts mounted upon the rodV and engaging the hubs, the said'jam-nuts and cross-heads coperating with each other to hold the valve-disks in proper position.

In testimony whereofI hereunto aflix my signature in presence of two witness'es.

JOHN \\`i\SlllX(-\`r'l`0\Y l}lSlii.\'lll"l.`ll`

Iitnessesz JOHN L. FLETCHER, j EDWARD T. Br'Ncn.

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